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Power supply circuit, system and power supply method of information converter

A technology for information converters and power supply circuits, applied in electronic switches, electrical components, pulse technology, etc., can solve problems such as detonation of explosive gas mixtures, damage to electrical equipment, etc., achieve low cost, high reliability, and reduce overcurrent effects

Active Publication Date: 2019-04-16
NEW SINGULARITY INT TECHN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the electrical equipment is powered on, the voltage instantly rises from 0 to the power supply voltage. Therefore, the current in the circuit will increase instantaneously to form an inrush current. The inrush current will not only damage the electrical equipment itself, but also release a huge amount of energy when the inrush current is generated. energy, may detonate explosive gas mixture

Method used

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  • Power supply circuit, system and power supply method of information converter
  • Power supply circuit, system and power supply method of information converter
  • Power supply circuit, system and power supply method of information converter

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Embodiment Construction

[0048] Before introducing the embodiments of the present invention, the intrinsically safe circuit will be described. When electrical equipment is used in environments containing explosive mixtures such as coal mines, petroleum, chemicals, and textiles, it needs to comply with the regulations for intrinsically safe circuits.

[0049] Intrinsically safe circuit means that any electric spark or any thermal effect generated by the circuit under the standard specified conditions cannot ignite the specified explosive gas mixture. The conditions stipulated in the standard include normal working status and specified fault status, wherein, the normal working status refers to the normal working status of the circuit under the specified design conditions, including power-on and power-off operations of the circuit; when the circuit is turned on or off A certain amount of energy is always released in the form of sparks. The fault state refers to the damage of non-protective components in ...

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PUM

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Abstract

An information converter power supply circuit, system, and power supply method, relating to the technical field of power supply circuits. The power supply circuit comprises a control circuit on-off switch transistor and a delay start-up circuit; when the power supply circuit is connected to a power source, the delay start-up circuit controls a slow voltage rise of the control end of the switch transistor, such that the switch transistor is slowly started up (conducts) from an off state, and then the output voltage of the output end of the switch transistor slowly rises, i.e. the power supply voltage of the information converter slowly rises. The overshoot current caused by the switch transistor starting up too fast is prevented, the overcurrent in the power supply circuit of the information converter is reduced, and the safety of the power supply circuit of the information converter is improved.

Description

technical field [0001] The invention relates to the technical field of power supply circuits, in particular to an information converter power supply circuit, a system and a power supply method. Background technique [0002] The mining card reader is mainly used to track and identify the staff entering the mine. The information converter is an important device inside it, which is connected to the starting end of the mine card reader cable, and is used to drive the cable to realize functions such as information conversion and data interaction. [0003] When the electrical equipment is powered on, the voltage instantly rises from 0 to the power supply voltage. Therefore, the current in the circuit will increase instantaneously to form an inrush current. The inrush current will not only damage the electrical equipment itself, but also release a huge amount of energy when the inrush current is generated. energy, may detonate explosive gas mixture. [0004] Since the mine is an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/16H03K17/284H03K5/134
CPCH03K17/163H03K5/134H03K17/284
Inventor 邵起明
Owner NEW SINGULARITY INT TECHN DEV
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